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STRANGE BUT TRUE! 77
Some of the heat escapes into space. Greenhouse gases trap some of the heat in the atmosphere.
Heat from the Sun passes through the atmosphere and warms Earth.
FAST FACTS Earth’s atmosphere allows the Sun’s heat to reach Earth but stops some from escaping. This is known as the greenhouse effect, and it warms Earth enough to support life. Increasing levels of methane and other greenhouse gases are contributing to the “enha
Stacks of methane bubbles pile up, as if a bubble-making machine has stopped in mid-flow. EXPLODING BUBBLES Methane is a colorless, odorless gas, but it is highly flammable. Scientists studying the frozen bubbles (above) may be unsure which gas they’ve found. Piercing the ice with a pick and igniting the gas pro
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